The MKZ Autoblog tested was $49,XXX, which is a lot for that car. While, for the money, Lincoln has always offered significantly more than other luxury car brands, but it all means nothing if it doesn't have a soul of a true sports sedan.
And, what you said is very true about the LS. Even Autoblog agrees.......here is Autoblog's last few words when they reviewed the new MKZ...
"Lincoln doesn't want anyone to think of its newest offering as a redesigned Ford Fusion with boosted luxury appointments and a $15,000 price premium, but the reality remains hard to ignore. A sinking feeling in our stomachs tells us this MKZ is still not distinct enough to buoy the luxury brand. In fact, the whole experience left us wondering... what would the underappreciated rear-wheel-drive Lincoln LS have matured into today had it been celebrating its 13th year of production?
E60 M5 is an amazing vehicle, just get warranty through BMW bumper to bumper and that car will keep you elated.